Mathematical Mail

Sample Problems and Answers

Български  English  Русский
  • TOURNAMENT PROGRAMME AND ROOM ALLOCATION – FINAL 2026
  • About us
  • Regulations
  • Problems and answer key
  • Mathematical Talents club - Stara Zagora
  • Education without borders- objectives, realization, ambitions
  • Official Site of the Mathematics without Borders Tournament
  • Official Site of the Mathematics without Borders Tournament

Latest News

  • Where in Bulgaria, besides schools, is the tournament held?

     September 23, 2026 at 11:14 AM

  • XIV International Tournament “Mathematics Without Borders”

     September 15, 2026 at 2:22 PM

  •  August 23, 2026 at 11:41 AM

  • MATHEMATICS WITHOUT LIMITS – “IN THE FOOTSTEPS OF THALES” INTERNATIONAL FINAL 2026

     August 8, 2026 at 5:49 PM

  • 368 Students from Five Countries Took Part in the Mathematics Without Borders Remote Final

     July 16, 2026 at 11:05 AM

  • TEAM COMPETITION MEDAL WINNERS

     July 6, 2026 at 2:45 PM

  • INDIVIDUAL COMPETITION RESULTS

     July 6, 2026 at 11:54 AM

  • TEAM COMPETITION RESULTS – MATHEMATICS WITHOUT BORDERS FINAL

     July 6, 2026 at 8:51 AM

  • Results from the individual competition by INDEX number and Answer Key

     July 5, 2026 at 11:22 AM

  • LODOVICO FERRARI TOURNAMENT FOR SOLVING ALGEBRAIC EQUATIONS AND PUZZLES

     June 21, 2026 at 12:31 PM

Mathematical Mail ©  l.lyubenov@mathematicalmail.com